1 Introduction
1.1 Features
The EVM supports the following features:
• Commander and slave configuration options
• Terminal block and header pins on all power and LIN bus connections
• Access to the LDO output VCC
• Accessible wake functionality with push-button
• Selectable pull-up and pull-down resistors for device pins
• Logic-level signals for high-voltage WAKE and LIMP signals
• Test point connections for each board signal
1.2 Description
The TLIN1431EVM provides users with the ability to evaluate the TI TLIN1431-Q1 family of single-channel
LIN SBCs, which include LDO, wake, high-side switch, watchdog, integrated battery voltage divider, LIMP, and
channel expansion functionality. The EVM allows both commander and responder mode applications to be
evaluated through the use of a single jumper that connects or disconnects the external 1 kΩ pull-up resistor and
series diode required in commander mode applications on the LIN bus.
The EVM has access to the integrated VCC rail from the device LDO. This LDO output can be used as
logic-level input voltages for the logic pins of the TLIN1431-Q1. The TLIN14315-Q1 includes a 5-V LDO, and
the high-level logic inputs to the device can range from 2 V to 5.25 V, though the biasing of the PIN/nCS pin
determines whether 3.3 V SPI or 5 V SPI is used (known as “VIOless” capability). This allows the TLIN14315-Q1
to interface with both 3.3 V and 5 V logic levels. The TLIN14313-Q1 includes a 3.3-V LDO, and the high-level
logic inputs to the device range from 2 V to 3.6 V, allowing interfacing with 3.3 V systems.
Non-populated pads are included on TXD, RXD, and LIN to accommodate a variety of different tests requiring
various capacitive load conditions. Additionally, the LIN signal contains a non-populated SOD-323 footprint on
LIN allowing for the implementation of an ESD1LIN24-Q1 protection device as desired.
The TLIN SBC family supports both 12 V and 24 V automotive applications and is operated with a supply voltage
from 5.5 V to 28 V, and is capable of handling supply/battery voltages up to 42 V. The LIN bus provides extended
bus fault protection of ±58 V.
External headers with power and LIN bus connections allow for the EVM to be evaluated in a larger system.
Additional, channel expansion outputs provide the capability of interfacing with another device, such as a
TCAN1042-Q1 or a TLIN1021-Q1 (or other TCAN and TLIN devices) as applicable.
The wake input functionality of the TLIN1431-Q1 is accessible in many ways, including via external interface or
push-button wake.
Introduction
SLLU326 – MAY 2022
TLIN1431EVM User's Guide
3
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